Hallock wardmaet



H. WARDIVIAN.

VISE.

APPLICATION HLED nEc.27. 1915.

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AT TUR/VC V5 ramns amen HALLOCK WARDMAN, OF RACINE, WISCONSIN, ASSIGNOR T0 J.

MOORES JONES, 015' RACINE, WISCONSIN.

VISE.

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Specification of Letters Patent.

lPatented Aug. 1, 1916..

Application filed December 27, 1915. Serial No. 68,646.

The invention is designed more particularly to provide a vise in which the movable jaw member is readily and quickly clamped in position and the clamping face of which member may be disposed at an angle to the clamping face of the fixed jaw member for securing work of irregular shape in the vise.

The invention is further designed to provide a vise in which the movable jaw member is slidably mounted upon the fixed aw and adapted to be secured thereto in different positions of adjustment, the securing means co-acting with the movable aw member to constantly exert a force upon the face of said jaw member downwardly and below its center of gravity so as to prevent any tendency of the movable jaw vmember to tip upon the fixed jaw member.

The invention is further designed to provide a new and improved form of vlse.

.The invention consists in the several features hereinafter set forth and more particularly defined by claims at the conclusion hereof.

T11 the drawings: Figure 1 is a view of the device, parts being broken away and parts being shown in section; Fig. 2 is a section taken on line 2-2 of Fig. 1; Fig. 3 is a section taken on line 3-3 of Fig. 1; Fig. 4'

is a section taken on line 1-1 of Fig. 2.

The device consists in general of a fixed jaw member 5 and 'a movable jaw member 6 mounted on said fixed member, and means for clampingly looking the movable member to the fixed member in different positions of adj ustment to secure and clamp the work between the jaws 7 and 8 respectively of said members.

The fixed jaw member 5 comprises a base plate 9 provided with a longitudinally extending inverted T-shaped guideway 10 extending centrally through said plate for a portion of its length and opening as shown at 11 into the top of the plate. The upper sides 12 of the inverted T-shape guide-way are provided with corresponding series of rack teeth 13 for purposes hereinafter described. The jaw 7 of the fixed aw member extends upwardly and at right anglcs to the base 9 at one end thereof.

The movable jaw member comprises the jaw 8, and a supporting portion 14 slidably mounted upon the top of the base 9 and provlded with a vertically extending slot 15 having a concavely curved inclined face 16 at one end thereof.

The means for securing the movable member to the fixed member comprises means for engaging the rack teeth in the slot in the base member and means for wedging said rack engaging means against the fixed member to thereby wedge or clamp the movable jaw member to said fixed jaw member and to move said movable jaw member forwardly to clamp the work between it and the fixed jaw.

The means forengaging the rack teeth of the base member comprises an inverted T- shaped member 17 having a series of teeth 18 on the upper sides 19 of the fianges of the T, which teeth are adapted to register with the teeth 13 of the guide-way 10. The width of the flanges of the T are less than the width of the flanges of the guide-way so that there is suificient clearance between the bottom 20 of the inverted T and the bottom 21 of the guide-way to permit said inverted T- shaped looking member 17 to be moved downwardly to disengage its teeth from the teeth in the base of the fixed jaw member so that it may be moved within the guide-way in the base to various positions of adjustment and be brought into engagement with said teeth when desired. The upper end of the inverted T-shaped member 17 is provided with an enlarged eyed portion 22 angularly disposed with respect to the horizontal and the angularly extending eye 23 of which is interiorly threaded.

The means for securing the rack engaging means in clamping position to thereby secure the movable jaw member in position on the fixed jaw member comprises a screw shaft 24 in threaded engagement with the threaded eye 23 and provided with a hand wheel '25 at the upper end thereof and a spherically convex end 26 at the lower end of said rod which spherically convex end is adapted to engage with the concavely curved inclined side 16 of Lthe slot 15 in the movable j aw member.

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The 'aXis of the screw shaft 24 is disposed in a line which passes down through the center of mass of the movable. jaw member andconsequently below the center of gravityof said member so that its end 26 will eXert at all times a downward pressure against the side 16 of the slot as indicated by the arrow shown in Fig. 4-

which force will counteract any `force acting on the face of the movable member having a tendency to lift said jaw member from engagement with the top of the base of the fixed jaw member. i fConsequently when the Vmovablejnv ;member isbrought to the desired position uponjthe base of the fixed jaw member and the screw lshaft 24; is

'brought into the clamping engagement'with the in'clined side of the slot 15 there will he no tendency of the movable jaw member to tiltV with respect to the fixed jaw member and' the jaws 7 and 8 will therefore always remain'at right angles to the horizontal and thus efliciently clamp the work disposed betw'eenithem.

The c'oneavely curved surface 16 of the slot 15 permits the movable member 6 to be moved so that the face of the jaw 8 is angui larly disposed Vwith respect'to the face of the 'jaw 7 without shifting the looking means from the movable member as the end 26 of 'the screw' shaft 24 is adapted to contact at 'any point with the concavely curved sur- 0 v face 16.

ngwiu'be not-d that the inciinea Surface 16 of the movable jaw member contacting with the end 26V of the screw shaft 24, when said shaft is brought down into engagement with thesurface through the turning of the shandle 25, wedges up and exerts a force to counteraet the downward force due to thev movement' of the screw shaft 24: against it and'by this'rwedging action moves said shaft upwardly and consequently moves the T- shaped member 17 in which the shaft has its Vbearing upwardly thereby causing the teeth 18 onsaid looking member 17 to engage the teeth 13 in the base 9 of the fixed jaw member and be there secured in looking position so that any tendency 'for Vertical or lateral'movement of the movable jaw member withV respect to the base of the fixed jaw member-will be prevented andlthe material disposedbetween the jaws of saidvmembers will consequently be securelyiclamped in position, whether the face of the movable aw member' is disposed parallel Vto the face of i the fi'xed jaw member or at an angle thereto.

ishafftlis rotated'by turning the handle 25 'so thatzits'zend 26 is heldfawayfrom engagement with the-movable jaw member 6' 7 shaped member 17 is moved forwardly along Jchebase 9 until the clamping faces of its jaw 8 engages with the other side of the work 27. Then the hand wheel 25 is turned so as to move the shaft 24 downwardly to bring its end 26 into engagement with the inclined side 16 of the movable member 6 and Vafter it is brought into engagement a further turning of the wheel moves the mo V- able jaw member 6 forwardly against the work and produces the Wedging action before described and brings the lower toothed portion of the member 17 into looking engagement with the base 9 of the fixed jaw member and thus locks both of the jaws in gripping position.

The invention thus exemplifies a simple and efiicient form of vise in which the movable member is pressed against the work and locked in position with respect to the fixed member by looking means having a wedging` engagemcnt with the movable member and a looking engagement with the base of the fixed member.

The invention is not to be restricted to the details of construction herein set forth, it being my intention to claim the invention as broadly as will be permitted by the state of the prior art.

`What I claim as my invention is:-

1. In a vise, the combination of a fiXed member comprising a clamping jaw and a base, a movable member comprising a clamping jaw and a base slidably mounted upon the base of the fixed member and angularly adjustable' with respect thereto and provided with a slot having an inclined face at one end thereof, and looking means for securing said movable jaw in different positions of angular adjustment adjustably secured to the base and having wedging engagement with said inclined face.

2. In a Vise, the combination with a fixed member comprising a clamping jaw and a base, a movable member comprising a clamping jaw and a base slidably mounted upon the base of the fixed member and angularly adjustable with respect thereto and provided with a slot having a concavely curved inclined face at one end thereof, and locking means for securing said movable jaw in different positions of angular adjustment adjustably secured to the base and having wedging engagement with said inclined face.

3. In a vise, the combination of a fixed member having a clamping jaw and a supporting base.V` a movable jaw member slidably mounted upon the top of said supporting base for movement toward or away from said fiXed clamping jaw and at an angle with respect thereto and provided with a ooncavely curved inclined bearing surface, a rotatable screw shaft having a spherically conveX end for wedging engagement with said bearing surface, and a looking member adjustably secured to-the supporting base and having an inclined threaded bearing for said shaft.

4. In a vise, the combination of a fixed member having a clamping jaw and a suppoi'ting base, a movable jaw member slidably mounted upon the top of said supporting base for movement toward or away from said fixed clamping jaw and at an angle with respect thereto and provided with a concavely curved inclined bearing surface, a rotatable screw shaft having a spherically conveX end for wedging engagement with said bearing surface, and a looking member having a wedging engagement with said base and provided with an inclined threaded bearing for said shaft.

5. In a vise, the combination, with a fixed member comprising a clamping jaw and a base, a movable member comprising a clamping jaw and a base slidably mounted upon the base of the fiXed member for movement toward or away from said fiXed inember and at an angle with respect thereto and provided with a concavely curved inclined bearing surface, and looking means adjustably secured to the base and having wedging engagement with said inclined face.

6. In a vise, the combination of a fixed member comprising a clamping jaw and a base provided with a guideway, a looking rack in the base on the upper side of said guideway, a movable member comprising a clamping jaw and a base slidably mounted upon the base of the fixed member and provided with an inclined bearing surface, a rotatable screw shaft for wedging engagement with said bearing surface, a bearing member for said shaft having a portion running in said guideway provided with teeth for looking engagement with said rack to clamp the movable jaw to the base when the screw shaft is moved into wedging engagement with the bearing surface of the movable jaw.

7. In a vise, the combination, of a fixed member comprising a clamping jaw and a base provided with an inverted T-shaped guideway, a locking rack in the base on the upper side of said guideway, a movable member comprising a clamping jaw and a base slidably mounted upon the base of the fiXed member and provided with a slot and an inclined bearing surface at one end thereof, a rotatable screw shaft for wedging engagement with said bearing surface, a locking member having a threaded bearing for said shaft disposed within the slot of said inovable member and having an inverted T- shaped portion running in said guide-way and provided with teeth for lockingly engaging said rack to clamp .the movable jaw to the base when the screw shaft is in engagement with the bearing surface of the movable aw.

In testimony whereof, I afiix my signature, in presence of two witnesses.

HALLOCK VVARDMAN.

Witnesses:

HAROLD JOHNSON, CI-IRISTIAN JOHNSON.

Copies of this patent may be obtained for five cents each, by addressing 'the Gommissioner of Patenta, Washington, I). 0.

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